0
votes
0answers
5 views

How to fire 404 to all non-canonical urls? [migrated]

Could somebody point me to htaccess rules, which would fire the 404 error to any page, which hasn't the canonical tag? I thought about something like this snippet could achieve (not sure, whether it ...
4
votes
1answer
169 views

What Google will do while switching from 301/404 to 200?

Imagine a pagination script with 20 total pages: articles.php?page=18 What should I do when some third party web site links to a non-existent page? articles.php?page=21 (page 21 is out of ...
0
votes
2answers
908 views

Avoid SEO loss after URL structure change

We recently re-wrote our site from Umbraco to WordPress. This has been done by third-party developers. I have been the project manager and it is my mistake that I haven't notice the change of URLs ...